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Home > Oxygen Concentrators > Oxygen Supplies > Output Filter Kit for Inogen One G4, G5

Output Filter Kit for Inogen One G4, G5

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Output Filter Kit for Inogen One G4, G5 Oxygen Concentrator

Ensure every breath you take is free of airborne particles with the Inogen One G4 & G5 Output Filter Kit. The package comprises two replacement output filters, designed to filter the air exiting your G4 or G5 Portable Oxygen Concentrator. As an added convenience, it includes a spanner wrench, making it easy to access and replace the output filter behind the removable cannula barb fitting.


  • Compatible with the Inogen One G4 and G5 Portable Oxygen Concentrators
  • Engineered to last as long as the concentrator
  • Includes 2 output filters and a spanner wrench for easy replacement
  • Located behind the detachable cannula nozzle fitting

While the G4 and G5 Output Filter is expected to last the life of your concentrator, it needs to be replaced between patients. 

Installation Instructions

  1. Align the two prongs of the spanner wrench with the two indentations on the concentrator’s cannula barb fitting.
  2. Carefully unscrew the cannula fitting in a counter-clockwise direction. 
  3. Remove the output filter and any debris from the recess.
  4. Place the replacement output filter into the recess.
  5. Screw the cannula fitting back into the recess in a clockwise direction. Be careful not to strip or overtighten the screws. 
  • 2 x Inogen One G4 & G5 Output Filters
  • 1 x spanner wrench
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